<%@ page import="java.sql.Statement" %>
<%@ page import="java.sql.ResultSet" %>
<%@ page import="java.sql.DriverManager" %>
<%@ page import="java.sql.Connection" %>
<%@ page import="java.util.ArrayList" %>
<%@ page import="java.util.List" %>
<%--
  Created by IntelliJ IDEA.
  User: Administrator
  Date: 2018/5/3
  Time: 17:09
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>

<jsp:include page="header.jsp"/>

<style type="text/css">

    table {

        border-collapse: collapse;
    }

    td{
        border: 1px solid #000;
        padding: 10px;
    }

</style>

<table>
    <tr>
        <td>编号</td>
        <td>姓名</td>
        <td>密码</td>
        <td>操作1</td>
        <td>操作2</td>
    </tr>

    <tr>
        <td>１</td>
        <td>chen</td>
        <td>123456</td>
        <td>删除</td>
        <td>更新</td>
    </tr>

    <%
        //脚本
        //３＋１从数据库查数据

        Connection connection=null;
        Statement statement=null;
        ResultSet resultSet=null;

        String sql="select * from t_users";
        Class.forName("com.mysql.jdbc.Driver");

        connection = DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/sctu_javaweb_2018?severTimezor",
                "root",
                "sctu123456"
        );

        statement=connection.createStatement();
        resultSet=statement.executeQuery(sql);

        class  User{
            int id;
            String username;
            String password;
        }

        List<User> userList=new ArrayList<User>();

        while (resultSet.next()){
            int id=resultSet.getInt(1);
            String username=resultSet.getString(2);
            String password=resultSet.getString(3);

            User user = new User();
            user.id = id;
            user.username = username;
            user.password = password;

            userList.add(user);
        }

        resultSet.close();
        statement.close();
        connection.close();

        for(User u:userList){
            out.write("<tr><td>" + u.id +
                    "</td><td>" + u.username +
                    "</td><td>" + u.password +
                    "</td><td>" +
                    "<a href='deleteUserHandler.jsp?id="
                    +u.id+"'>删除</a></td>" +
                    "<td><a href='updateUser.jsp?id="
                    +u.id+"&username="+u.username+
                    "&password="+u.password+"'>更新</a></td></tr>");

        }

    %>

</table>

<%@include file="footer.jsp"%>


</body>
</html>
